The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 26, 2019
Filed:
Nov. 01, 2017
Applicant:
Renesas Electronics Corporation, Tokyo, JP;
Inventor:
Kazuhisa Fukuda, Tokyo, JP;
Assignee:
Renesas Electronics Corporation, Koutou-ku, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S 5/10 (2006.01); H01S 5/343 (2006.01); H01S 5/00 (2006.01); H01S 5/02 (2006.01); H01S 5/028 (2006.01); H01S 5/042 (2006.01); H01S 5/22 (2006.01); H01S 5/30 (2006.01);
U.S. Cl.
CPC ...
H01S 5/1014 (2013.01); H01S 5/0021 (2013.01); H01S 5/0202 (2013.01); H01S 5/0287 (2013.01); H01S 5/0425 (2013.01); H01S 5/1039 (2013.01); H01S 5/22 (2013.01); H01S 5/3063 (2013.01); H01S 5/3434 (2013.01); H01S 5/34333 (2013.01);
Abstract
A waveguide includes a narrow waveguide, wide waveguides, and tapered waveguides. A width Ww of the wide waveguides is wider than A width Wn of the narrow waveguide. The tapered waveguides have their width continuously varying so as to couple the narrow waveguide and the wide waveguides, respectively. Assuming a length of the waveguide as L and an area as S, Ks=S/(Wn·L) and 1<ks≤1.5 are satisfied.
Fukuda, Kazuhisa. (2019). Semiconductor laser, light source unit, and laser light irradiation device (U.S. Patent No. 10243326). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10243326
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile